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https://issues.apache.org/jira/browse/CASSANDRA-10943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15209407#comment-15209407
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Aleksey Yeschenko edited comment on CASSANDRA-10943 at 3/23/16 11:27 PM:
-------------------------------------------------------------------------
Pushed a patch that simply future-ports {{calculateIsDense}} logic verbatim to
3.0 from 2.1/2.2 and calls the method if {{is_dense}} field is missing from the
migrating tables for any reason. This fixes the potential NPE issue, though
there is at least one more related problem with {{is_dense}}, for Thrift tables
that start as dense and get columns added later. I will address that - with
extra tests - in CASSANDRA-11315.
was (Author: iamaleksey):
Pushed a patch that simply backports {{calculateIsDense}} logic verbatim to 3.0
and calls the method if {{is_dense}} field is missing from the migrating tables
for any reason. This fixes the potential NPE issue, though there is at least
one more related problem with {{is_dense}}, for Thrift tables that start as
dense and get columns added later. I will address that - with extra tests - in
CASSANDRA-11315.
> NullPointer during LegacySchemaMigrator
> ---------------------------------------
>
> Key: CASSANDRA-10943
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10943
> Project: Cassandra
> Issue Type: Bug
> Environment: Debian Jessie
> java version "1.8.0_66"
> Cassandra 2.2.4 -> 3.1.1 migration
> Reporter: Stephan Wienczny
> Assignee: Aleksey Yeschenko
> Priority: Minor
> Fix For: 3.0.x, 3.x
>
> Attachments: 10943.txt
>
>
> I'm trying to upgrade my Cassandra cluster from 2.2.4 to 3.1.1.
> I used
> {quote}
> nodetool upgradesstables
> nodetool drain
> {quote}
> before upgrading.
> The result is this:
> {quote}
> INFO [main] 2015-12-26 22:41:44,114 SystemKeyspace.java:1284 - Detected
> version upgrade from 2.2.4 to 3.1.1, snapshotting system keyspace
> WARN [main] 2015-12-26 22:41:44,318 CompressionParams.java:382 - The
> sstable_compression option has been deprecated. You should use class instead
> ERROR [main] 2015-12-26 22:41:44,427 CassandraDaemon.java:690 - Exception
> encountered during startup
> java.lang.NullPointerException: null
> at
> org.apache.cassandra.serializers.BooleanSerializer.deserialize(BooleanSerializer.java:33)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.serializers.BooleanSerializer.deserialize(BooleanSerializer.java:24)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.db.marshal.AbstractType.compose(AbstractType.java:114)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.cql3.UntypedResultSet$Row.getBoolean(UntypedResultSet.java:272)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.schema.LegacySchemaMigrator.decodeTableMetadata(LegacySchemaMigrator.java:264)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.schema.LegacySchemaMigrator.readTableMetadata(LegacySchemaMigrator.java:250)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.schema.LegacySchemaMigrator.readTable(LegacySchemaMigrator.java:221)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.schema.LegacySchemaMigrator.lambda$readTables$218(LegacySchemaMigrator.java:214)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at java.util.ArrayList.forEach(ArrayList.java:1249) ~[na:1.8.0_66]
> at
> org.apache.cassandra.schema.LegacySchemaMigrator.readTables(LegacySchemaMigrator.java:214)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.schema.LegacySchemaMigrator.readKeyspace(LegacySchemaMigrator.java:163)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.schema.LegacySchemaMigrator.lambda$readSchema$215(LegacySchemaMigrator.java:154)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at java.util.ArrayList.forEach(ArrayList.java:1249) ~[na:1.8.0_66]
> at
> org.apache.cassandra.schema.LegacySchemaMigrator.readSchema(LegacySchemaMigrator.java:154)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.schema.LegacySchemaMigrator.migrate(LegacySchemaMigrator.java:77)
> ~[apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:223)
> [apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:549)
> [apache-cassandra-3.1.1.jar:3.1.1]
> at
> org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:677)
> [apache-cassandra-3.1.1.jar:3.1.1]
> {quote}
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